Answer:
decomposition
Explanation:
did the test and got it correct
B.4
C.1
D.2
the answer is a
Answer:
Its a
Explanation:
I got that answer on my own not from the Question ;)
The third energy level in an atom, as described by quantum mechanics, contains three sublevels: the s, p, and d sublevels.
In the field of chemistry, the term energy level refers to the fixed amount of energy that a system described by quantum mechanics, such as a molecule, atom, electron, or nucleus, can have. Specifically, when we refer to the third energy level, we're talking about an energy state with the principal quantum number n=3.
For any energy level defined by the principal quantum number n, there are n sublevels. Therefore, in a third energy level (n=3), we have three sublevels. These would be the s, p, and d sublevels.
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(2) an element (4) a substance
Answer:
(3) a mixture
Explanation:
Castle learning
Answer: chronic is long term and severe while acute lasts for a short amount of time.
B) volatile organic compounds.
C) sulfuric acid and nitric acid.
D) carbon dioxide and water vapor.
Final Answer:
The complete combustion of fossil fuels and refuse produces D) carbon dioxide and water vapor.
Explanation:
Fossil fuels and refuse, when subjected to complete combustion in the presence of sufficient oxygen, undergo a chemical reaction. This reaction primarily produces carbon dioxide (CO2) and water vapor (H2O).
In summary, complete combustion of fossil fuels and refuse results in the production of carbon dioxide (CO2) and water vapor (H2O) as the primary products.
Click on the link to learn more about combustion: brainly.com/question/36046796
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The complete combustion of fossil fuels and refuse produces carbon dioxide and water vapor.
The complete combustion of fossil fuels and refuse produces carbon dioxide and water vapor. During combustion, the carbon in fossil fuels and refuse combines with oxygen from the air, resulting in the production of carbon dioxide (CO2) as the primary product. Additionally, hydrogen in the fuels and refuse combines with oxygen to form water vapor (H2O). This process releases energy in the form of heat and light.
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decomposition
single replacement
double replacement
Answer : Option D) Double replacement
Explanation : Double displacement or replacement reactions are those in which the two reactant molecules exchange the cations and anions between them and give a new product.
So, in this case when the reaction is AB + CD → AD + CB
Here, both the species of reactant compound molecule went replacement with the adjacent cation and anion group and formed a new compound or product. Therefore, this can be called as double replacement reaction.
Answer : The correct option is, (C)
Explanation :
A.
This is synthesis reaction in which the two or more reactant react to give a single product.
B.
This is combination reaction in which the two reactants combine to form a single product.
C.
This is a neutralization reaction in which an acid react with a base to give a salt and water as a product.
D.
This is a double displacement reaction in which the positive cation and negative anion of two reactants exchange their places to give two new products.
Hence, the reaction (C) is a neutralization reaction.